Sumatra. Atjeh. 3½ Cent postcard type Kreisler with violet overprint Dai Ni Hon in straight frame Bu.164b from Langsa 18.1.19 to Medan

Sumatra. Atjeh. 3½ Cent postcard type Kreisler with red overprint Dai Ni Hon in straight frame Bu.164d from Takengon 18.4.26. to Medan

Sumatra. Atjeh. 7½ Cent letter sheet with black overprint Dai Ni Hon in wavy frame Bu.167 from Lhoseumawe 18.10.19. to Medan

Sumatra. East Coast. 3½ Cent postcard type Kreisler with black overprint Dai Ni Hon in straight frame Bu.164a from Perbaoengan 18.4.18. to Medan

Sumatra. East Coast. 3½ Cent postcard type Kreisler with red overprint Dai Ni Hon in straight frame Bu.164d from Pematang-/Siantar 18.5.13.11. to Medan

Sumatra. East Coast. 3½ Cent postcard type Kreisler with black overprint Dai Ni Hon in wavy frame Bu.164g locally sent in Medan 18.3.-1.16.

Sumatra. East Coast. 3½ Cent postcard type Kreisler with black overprint Dai Ni Hon in wavy frame Bu.164g from Tandjong-/Poera 18.4.10.16 to Medan

Sumatra. East Coast. 3½ Cent postcard type Kreisler with red overprint Dai Ni Hon in wavy frame Bu.164h from Pematang-/Siantar 18.4.27.12. to Medan

Sumatra. East Coast. Spectacular franking of 80 cent, 1, 2 and 10 gulden type Van Konijnenburg with machine T-overprint, and 5 gulden type Kreisler and 25 gulden type Van Konijnenburg with hand-stamped T-overprint, from Medan 19.6.27 registered (green label) to Soerabaja 18.7.0.4 17. On the back blue circular censor mark Bu.JC17

Sumatra. Tapanoeli. 7½ Cent letter sheet with violet overprint Dai Ni Hon in straight frame Bu.167b from Porsea 18.12.21, to Medan, showing also sewing machine censor

Sumatra. Djambi. Black two-line overprint Nippon/MA on 3½ cent Moehammadijah no. 421z-62, fine copy (gum dried out). Found a few years ago and unlisted in stamp catalogues. Opinion SvL: the overprint is genuine

Sumatra. Djambi. Black two-line overprint Nippon/MA on 3½ cent Moehammadijah no. 421z-62, fine copy (gum dried out). Found a few years ago and unlisted in stamp catalogues. Opinion SvL: the overprint is genuine

Sumatra. Djambi. Black two-line overprint Nippon/MA on 3½ cent Moehammadijah no. 421z-62, fine copy (gum dried out). Found a few years ago and unlisted in stamp catalogues. Opinion SvL: the overprint is genuine

Sumatra. Djambi. Black two-line overprint Nippon/MA on 15 cent Moehammadijah no. 421z-65, fine copy (gum dried out). Found a few years ago and unlisted in stamp catalogues. Opinion SvL: the overprint is genuine

Sumatra. Change of address card type Dancer with black overprint Dai Ni Hon in straight frame Bu.169a, unused. Also 2 cut-outs with cds of Kajoeagoeng

Sumatra. 3½ Cent postcard type Kreisler with black overprint Dai Ni Hon in wavy frame Bu.164g unused, and 3½ cent postcard type Kreisler in photogravure printing with violet overprint Dai Ni Hon in straight frame Bu.164c, scarce card and unused not listed